And dale a



, M. .LALDRICH ETAL 1,735,712

SAFETY SUMP ATTACHMENT FOR CARBURETORS I Nov. l2, 1929.

vFiled 001,. 31. 1927 IIIIIIIIIIIIIIIII/ [III/lll INVENTORS. WWA; @am

A TTORNE Y.

Patented Nov. l2, 19729 UNIT ED jorar MAM. Assmann 0F. KEQIsUK, IOWA,v AND DALE A- SDrZ AND. KENNETH GARD-EDT,

or; KANKAKEE, IL'LIftOIHSz .i

.SAFETY SUM? ATTACHMENT FOD. GARDDBDTQRS Application `filed Qctober 31, 1 927. SerialrNo. 230,057.

This invention relates tothe fuel sup-ply systems forinternal". combustion engines, and #while designed primarily for installation in connection with` the carburetors ofinternal V5 combustion engines upon motorfdriven airmisiiring -ory other failure to properlyv funccraft, suchas aeroplanes and dirigible balloonamay' equallywell find embodiment in internal combustionengines which are em# ployed in connection with automobiles', motor: boats, locomotives, submarines, etc., as well as being adapted for use in connection with stationary combustion engines.

'l-he hazards incident to misfiring or other failure of proper functioning of the internal combustion engines of aircraft and particularly aeroplanes, are well recognized. Such tion is ordinarily due to clogging of the fuel feed of the carburetors or. the accumulation of water in the carburetors, and therefore the present invention has as its primary object to provide a sump for installation in connection with the fuelfeed of internal combustion engines of the generalclass referred to,

l and novel means associated with the sump and operable to eect Apractically instantaneous Ydraining of the well of the carburetor so that the ffueltherein which may be contaminated with solid particles of foreign matter or'with water, vmay' be practically immediately discharged from the'well of the carburetor, permitting a fresh supply of'clean fuel to the carburetor.

Y Another'object ofthe invention is to provide a sump and means associated therewith for eecting draining of the carburetor with which the sump is associated, so that the hazardsiincurred by fire may be avoided.

`Another object of the invention is to' so con-A description which. is to. follow, constitute a disclosure of the preferred embodiment ofthe invention, it will be understood that various changes may be within the scope'ofwhat isclaimed. a LV In the, accompanying drawings :V u

Fig. 1 is a View in side elevation of the. sump embodying the invention; f *l Eig. 2 is a vertical longitudinal,sectional view through the sump, the drain valvetl ere of being shown in openj position;

v Fig. S is an end elevation 4ofthe sump; ,l

Fig- 4 isa vertical transverse Sectional vie'w taken substantially on the line'elfi of Figure l looking yin the rdirection indicated by/,thet arrOWs; L; vf V l Fig. 5 is a plan .viewl of; the sump attachment;

Fig. Gis. a horizontal'sefctional View taken substantially onthe-1jine6'-6. 0f, Figure-2 ffm looking Vin the VVdirection indiated by the arrows.

The attachment embodying the invention comprises a sump or accumulating chamber indicated in generalby then'umeral '1 and GQ1411-V prising, preferably,two relatively laterally displaced bowls 2 and a Ic'ormecting neck 8 which extends between the bowls, thesepart-s being preferably integrally cast, and -e'ach bowl being p1."o'vi dedy in its top with'an opening 4 and in its'bottom with a preferably conical opening 5 whichfis fof slightly greater diameter than the opening 4l. lThe numeral 6 indicates in general 'an accumulating-fand re.-

taining nipplewhich is associated with each bowl Q,and each of these nipples comprises a tubular body 7g closed at its lower end by a head 8, preferably of polygonaloontour, lto adapt it for the application, .thereto AQt a wrench, the body 7 of each nipple being fitted upwardly through the openings 5 and 4.11.1 ,the respective bowl as .Clearly Shown iii-Figure 2 ple 6 is eXterOrly threaded as ndcatedby the numeral 9 and the body 7 of each nipple, its juncture with the head 85. is exterorly 0f conical form as ndcatedbythe numeral lll, so as. to adapt thsportionof the body -Qt each nipple to snuglviit in the .conical opening '5 in the respective bowl 2,@ gasket 11 bei-ng al of the drawings. The, upper end of each nipranged upon this portion of the body of the nipple, and being confined between the head rand the under side of the bottom of the respective bowl, so that a fluid-tight connection is provided at this point. The upper portionof the body 7 of each accumulating and retaining nipple is snugly fittedthrough Y Vthe opening 1 of the respective bowl and the threaded upperend of the body is fitted into a threaded opening c in' the bottom fof the well of the carburetor or carburetors in connection i' with which the lsump attachment is installed,

gaskets 12 being arranged upon the projecting upper ends of the bodies 7 of the nipples so as to beconiined between the upper sides of the bowls 2A andthe under side-.of ,thev bot- `tomi of the carburetorxwithwhich the nipples are' placedY in communication, it being understood thata` wrenchfmayibe applied to the headsG of the nipples and the nipples rotated so as to thread them into'theA threaded openings in=thewell on wells of the'carburetor or carburetors. nipple yis placed in communication with the interior of the :respective bowl 2, through the medium of openings 13 whichareformedin the body ofthe nipplefimmediately abovel thelhea'd lGand whichfare preferably7 located 1 *at diametr-ical-ly opposite points, so that gaso- 'line'or other motive.` fluidmay enter the sump land fill the bowls 2 and connecting` neck `3 thereof, bywayzofthenipples 7 and the openings l-in the Walls thereof, At this point zit Vwillb'e evident that inasmuch as the sump is installed upon the underside of thewell of the carburetor: ori carburetor's, and likewise inasmuch aspany solid articles of foreignmat- Vteror any-watermiXed with the gasoline or other fuel, will be of greater specific gravity than the fuel, such particles or thewater will settle into the sump and be collected and retained therein, thepure or uncontaminated f fuelremaining in the well of the varburetor.

In order that the accumulated particles of foreign matter or the accumulated Water may be discharged from the sump, fromtime to' time as occasion may require, or in order that Vthe carburetor well may'be'com'pletely drained, in the event of re, the neck 3 of the sump is provided upon its under side and midway between the bowls`2 of thesump, with a' downwardly "projecting `exteriorly threaded'nipple 14 to which is itte'd the upper end` of the casing 15 off a rotaryv cutoff valve 16, the port or Vpassageof whichvalve is in dicated bythe numeral 17 The numeral' 18 indicatesan actuating arm which is fixed to the projectingstem of the valve-16, and anv actuating rod 19,'is connected'rto the end of the arm 18 and is led to the control board Within the cockpit of the aeroplane or other aircraft, or to any .other point where it may be conveniently actuated by lthe pilot, any

suitable v1neans,vsuch for example as alever,

or apushor apull plunger, being employed The bore v,of the body of reach Y' in connection withthe rod for actuation of the same.

F rom the foregoing description ofthe invention it will be obvious that, by actuating the rod 19 and swinging the arm 18 to openV the valve 16, themotive-fluid .which -is contaminated with particles' "of.lfolrfeigny matter or with water and which hasaccumulated within the sump, ,maybepractically' instantly drained from the sump, this operation (of the Vvalve being effected at theinstant there is speed, or idling; while theaeroplane or other aircraftis at rest, withthe motorimopera'- tion or idle; and', .whilethe aeroplane orother craft is in motion'upon;land,'.w ater,=\iorigii any stage oftalze-Yo'lfor landingiand whetherV the motor is functioningornot:VY fue y In the usefof :the appliance,tthe,valfle1:8 is i Y opened through operation` ofthe'ffrodrA-19, in

the manner vpreviously explained, `andifat the lirstindication of any` motor trouble, andis permitted to remain open for; the -period v0f `a few seconds whereuponthe :rod `19v `"isf, again `operated buty in a reverse' directiompso as to close, thevalve, `the contaminated'motgve iuid having been, vin'ithe intervalsdrained completely from the sump.: Y Y accumulating It` will be evident that. the

and retaining nipples 6 are so assembledwith Y Vthe bowls 2 of the vsump basto permit of convenient disassemblage of the partsfand-a thoroughcleansing of tliesame, after thed, vice has'been in use-for a considerable'period of time, although it .will likewisexbegevident that theV constructionlis,.suclrthatthere is `A little likelihood `of clogging-'ofthe .device through the accumulation ofy l foreign; matter therein. a :q if; Having 'thus described the inventionywhat we claim is: f y L' i ,4 'n/1Liffsifi' is 1. A' carburetor attachment 'forztllt-Lppllr.-V pose stated: comprisinga sump chamberhav-- ing openings inffitstop and bottom walls, a

nipple including .a hollow.,tubulaI1bQ.Cly et;-

ted through. said openings,andha-vinggan opening in its wally establishing communicatienbetween its'bore andthe interiorfofthe sump chamber, the nipple havingitsilpper end projecting above the` sumpgchamber; forV connection to the well of acarburetorbyway vof an openingy in.theibottomofisaidWe1l andL :130

a drain valve in the bottom of the sump chamber.

2. A carburetor attachment for the purpose stated comprising a sump chamber having openings in its top and bottom walls, a

nipple including a hollow tubular body fit-- ted through said openings and having an opening in its wall establishing communication between its bore and the interior of the sump chamber, lthe nipple having its upper end projecting above the sump chamber for connection to the well of a carburetor by way of an opening in the bottom of. said well, and a drain Valve in the bottom of the sump chamber, the nipple being provided at its lower end with a head and having its body, adjacent its juncture with the head, exteriorly conical, the opening in the bottom of the sump chamber being of conical form to snugly accommodate the conical portion of the body of the nipple, and a gasket interposed between the bottom of the sump chamber and the upper side of the said head of the nipple.

3. A carburetor attachment for the purpose stated comprising a sump chamber including laterally relatively displaced bowls and a connecting neck establishing communication between the bowls, an accumulating and retaining nipple associated with each Y bowl and in communication therewith, the upper ends of the nipples projecting above the respective bowls and constituting means for attaching the sump chamber to, and in communication with, the well of a carburetor, and a drain valve leading from the bottom of the neck of the sump. chamber.

4. A carburetor attachment for the pur- Y pose stated comprising a sump chamber having alined openings in its top and bottom walls, a nipple including a hollow cylindrical body removably fitted in said openings, the body having a head at its lower end and at its upper end projecting above the sump chamber and being threaded for connection with the well of a carburetor, the body being provided with diametrically opposite openings in its wall establishing communication between the interior of the body and the sump chamber, and a drain valve in the bottom of the lsump chamber.

In testimony whereof we aiix our signatures.

MARK J. ALDRICH. DALE A. SEITZ. KENNETH E. GABBERT. 

